<template>
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-alert
        title="添加商品信息"
        type="info"
        show-icon
        center
        :closable="false">
      </el-alert>

      <el-steps :active="activeIndex -0 " :space="200" finish-status="success" align-center>
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <el-form :model="addForm" :rules="addFormRules"
               ref="addFormRef" label-position="top">
        <el-tabs v-model="activeIndex" :tab-position="tabPosition"
                 :before-leave="beforeTabLeave" @tab-click="tabClicked"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                :options="catelist"
                :props="cateProps"
                @change="handleChange"
                change-on-select
                clearable expand-change="hover"
                v-model="addForm.goods_cat"></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <!--渲染表单item项-->
            <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox v-for="(cb ,i) in item.attr_vals" :label="cb" :key="i"></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item :label="item.attr_name" v-for="item in onlyTableData" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>

          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!--图片要上传到的API地址-->
            <el-upload
              class="upload-demo"
              :action="uploadURL"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :file-list="fileList"
              :headers="headerObj"
              :on-success="getTmpPath"
              list-type="picture">
              <el-button size="small" type="primary">点击上传</el-button>
              <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
            </el-upload>
          </el-tab-pane>
          <!--富文本编辑器组件-->
          <el-tab-pane label="商品内容" name="4">
            <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <!--添加商品的按钮-->
            <el-button type="primary" class="btnAdd" @click="add">添加商品</el-button>
          </el-tab-pane>

        </el-tabs>
      </el-form>
    </el-card>
    <el-dialog
      :visible.sync="previewVisible"
      title="图片预览"
      width="50%">
      <img :src="previewPath" class="priviewImg">
    </el-dialog>
  </div>

</template>

<script>
import _ from 'lodash'
/* eslint-disable */
export default {
  name: 'List',
  data () {
    return {
      uploadURL: 'http://www.ysqorz.top:8888/api/private/v1/upload',
      //图片上传组件header请求头
      headerObj:{
        Authorization:
        window.sessionStorage.getItem('token')
      },
      previewPath: '',
      previewVisible: false,
      tableData: [],
      parentCatList: [],
      manyTableData: [],
      onlyTableData: [],
      cateProps: {
        value: 'cat_id',
        label: 'cat_name',
        children: 'children'
      },
      total: 0,
      activeIndex: '0',
      tabPosition: 'left',
      catelist: [],
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics:[],
        goods_introduce: ''
      },
      addFormRules: {
        goods_name: [
          {
            required: true,
            message: '请输入商品名称',
            trigger: 'blur'
          }
        ],
        goods_price: [
          {
            required: true,
            message: '请输入商品价格',
            trigger: 'blur'
          }
        ],
        goods_weight: [
          {
            required: true,
            message: '请输入商品重量',
            trigger: 'blur'
          }
        ],
        goods_number: [
          {
            required: true,
            message: '请输入商品数量',
            trigger: 'blur'
          }
        ],
        goods_cat: [
          {
            required: true,
            message: '请输入商品分类',
            trigger: 'blur'
          }
        ]
      },
      fileList: []
    }
  },
  created () {
    this.getCateList()
  },
  methods: {
    async getCateList () {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品分类数据失败！')
      }
      this.catelist = res.data
    },
    handleChange () {
      console.log('this.addForm.goods_cat.length======' + this.addForm.goods_cat.length)
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    beforeTabLeave (activeName, oldActiveName) {
      console.log(activeName, oldActiveName)
      if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请先选择商品分类')
        return false
      }
    },
    async tabClicked () {
      //动态参数面板
      if (this.activeIndex === '1') {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, { params: { sel: 'many' } })
        if (res.meta.status !== 200) {
          return this.$message.error('获取动态参数列表失败！')
        }
        res.data.forEach(item => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTableData = res.data
      } else if (this.activeIndex === '2') {
        const { data: res } = await this.$http.get(`categories/${this.cateId}/attributes`, { params: { sel: 'only' } })
        if (res.meta.status !== 200) {
          return this.$message.error('获取静态属性列表失败！')
        }
        console.log(res.data)
        this.onlyTableData = res.data
      }
    },
    handleRemove (file, fileList) {
    //获取将要删除的图片的临时路径
      const filePath = file.response.data.tmp_path
      //从pic数组中找到这个图片对应的索引值
      const i = this.addForm.pics.findIndex(x =>x.pic === filePath)
      this.addForm.pics.splice(i ,1)
    },
    handlePreview (file) {
      this.previewPath = file.response.data.url
      this.previewPath = this.previewPath.replace('http://127.0.0.1','http://www.ysqorz.top')
      console.log(file)
      this.previewVisible = true
    },
    getTmpPath(response,file,fileList){
      const picInfo = {pic: response.data.tmp_path}
      this.addForm.pics.push(picInfo)
      console.log(this.addForm.pics)
    },
    add(){
      console.log(this.addForm)
      this.$refs.addFormRef.validate(async valid => {
          if(!valid){
            return this.$message.error('请填写必要的表单项！')
          }
          //执行添加的业务逻辑
          const form = _.cloneDeep(this.addForm)
          form.goods_cat = form.goods_cat.join(',')

          this.manyTableData.forEach(item => {
            const newInfo = {
              attr_id: item.attr_id,
              attr_value:item.attr_vals.join(' ')
            }
            this.addForm.attr.push(newInfo)
          })
          this.onlyTableData.forEach(item => {
            const newInfo = {
              attr_id: item.attr_id,
              attr_value: item.attr_vals
            }
            this.addForm.attr.push(newInfo)
          })
          form.attrs = this.addForm.attrs
          //发起请求添加商品
          const { data: res } = await this.$http.post('goods', form)
          if(res.meta.status !== 201){
            return this.$message.error('添加商品失败！')
          }
            this.$message.success('添加商品成功！')
            this.$index.push('/goods')
        }
      )
    }
  },
  computed: {
    cateId () {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
    }
  }
}
</script>

<style lang="less" scoped>
  .el-table {
    margin-top: 15px;
  }

  .el-checkbox {
    margin: 0 10 0 0 !important;
  }
  .priviewImg{
    width: 100%;
  }
  .ql-editor{
    min-height: 300px;
  }
  .btnAdd{
    margin-top: 15px;
  }
</style>
